# Grilled Avocado & Halloumi Breakfast Sandwich with Charred Tomato Jam > A grill-forward breakfast sandwich that layers smoky, charred avocado and quick-seared halloumi with a sweet-savory charred tomato jam and a runny grilled egg, all on toasted sourdough. Two-zone grilling creates deeply caramelized tomatoes and clean grill marks while simple finishing tips keep the avocado creamy and the sandwich portable for outdoor mornings. Canonical URL: https://www.topshelf.recipes/recipes/grilled-avocado-halloumi-breakfast-sandwich-charred-tomato-jam ## Author Jake Woods https://www.topshelf.recipes/chef/jake-woods Published: July 6, 2026 Last Updated: September 3, 2026 ## About This Recipe This sandwich is a compact lesson in contrast: smoky, crisp grill marks meet pillowy, barely-mashed avocado; squeaky, salty halloumi stands up to a runny, custardy yolk; and a sticky, charred tomato jam threads sweetness and acidity through each bite. The two-zone grilling method is what makes this version sing — high heat for immediate charring and flavor, paired with indirect warmth to coax the tomatoes into a jam without burning them or overcooking other components. Halloumi’s high melting point means you get the satisfying sear and chew that sandwiches usually lose when cooked for transport. It’s a great recipe for weekend campers, backyard brunches, or anyone who wants a more substantial vegetarian breakfast with portable appeal. Little finishing moves — a squeeze of lemon in the mashed avocado, keeping the jam warm on the cool side of the grill, and wrapping sandwiches in parchment then foil — preserve texture and make them easy to eat on the go. The result is not just a sandwich but an assembly of temperatures and textures designed to be eaten immediately or tucked into a cooler for an impressively good picnic bite. ## Recipe Information - Prep Time: 15 minutes - Cook Time: 30 minutes - Total Time: 45 minutes - Servings: 2 - Difficulty: Medium - Category: Grilling ## Ingredients ### Sear halloumi, char avocados and toast sourdough - 4 slices Thick-cut sourdough slices - 2 whole Ripe avocados - 8 oz Halloumi cheese ### Make charred tomato jam (two-zone grilling) - 1 lb Ripe cherry or plum tomatoes - 2 tbsp Packed brown sugar - 1 tbsp Balsamic vinegar - 2 tbsp Extra-virgin olive oil - 1 tsp Kosher salt & freshly ground black pepper - 1 tbsp Fresh lemon juice ### Grill runny eggs in a skillet - 2 whole Large eggs ## Ingredient Guide ### Halloumi cheese A semi‑firm, brined cheese from Cyprus widely used across the Eastern Mediterranean; it’s made from sheep’s and/or goat’s milk (sometimes cow’s) and sold in blocks or slices. It tastes salty and milky with a mild tang and a subtle floral aroma; its high melting point and springy, slightly rubbery texture let it be grilled or pan‑fried to a golden crust without melting. You can find it at well‑stocked supermarkets, Mediterranean markets, or cheese shops; good substitutes for grilling are Indian paneer, Latin American queso blanco/panela, or firm tofu for a non‑dairy option (feta is flavorful but will crumble rather than hold its shape). ## Instructions ### 1. Make charred tomato jam (two-zone grilling) Set up the grill for two-zone cooking: one side direct high heat (medium-high, ~450–500°F / 230–260°C) and the other side indirect low heat. Halve larger tomatoes or leave cherry tomatoes whole; place on the direct side just long enough to blister and char (2–4 minutes), turning for even charring. Move a cast-iron skillet or foil pan to the indirect zone, add the charred tomatoes, brown sugar, balsamic, olive oil, lemon juice and a pinch of the salt & pepper; simmer with the lid closed, stirring occasionally, until the mixture is reduced and jammy, about 12–15 minutes. Taste and adjust seasoning, then keep the jam warm over the indirect zone while you finish other components. ### 2. Sear halloumi, char avocados and toast sourdough Heat the direct zone to medium-high. Slice halloumi into 1/4–1/2" (6–12 mm) pieces, brush both sides lightly with olive oil, and sear directly on the hot grate 1–2 minutes per side until golden with good grill marks; transfer to the cooler side to keep warm. Halve and pit the avocados, brush the cut surfaces lightly with oil, and place cut-side down on the hot grate just until deep char marks form (30–60 seconds) — this adds smoke while leaving the interior creamy. Lay sourdough slices on the grate and toast 30–90 seconds per side until crisp and lightly charred; move to the indirect zone to stay warm. ### 3. Grill runny eggs in a skillet Set a small cast-iron skillet over the indirect side or on a cooler zone of the grill, add a teaspoon of olive oil or a small pat of butter, and crack in the eggs. Close the lid and cook until the whites are set but yolks remain runny, about 4–6 minutes depending on grill temp. Covering the skillet traps heat and ensures gently set whites without overcooking the yolk — check after 3–4 minutes and remove when whites are opaque but the yolk still jiggles. ### 4. Finish avocado and halloumi for creaminess and brightness Scoop the charred avocado flesh into a bowl and mash gently with a fork; stir in a squeeze of lemon juice and a pinch of salt to preserve color and keep it creamy. If desired, give the grilled halloumi a quick squeeze of lemon for brightness. Keep the tomato jam warm on the indirect side until assembly. ### 5. Assemble and pack the sandwiches for portable serving Spread a generous layer of charred tomato jam on the bottom slice of sourdough, add a smear of mashed charred avocado, top with a couple of halloumi slices and a runny egg, season with a little pepper, and finish with the top slice. For outdoor portability, wrap each sandwich in parchment then foil — if you’ll be traveling, pack jam and avocado separately in small containers to assemble just before eating to keep textures perfect. Serve immediately: makes 2 hearty breakfast sandwiches. ## Nutrition Estimated nutrition per serving (about 27 oz): - Calories: 1325 kcal - Protein: 41.4 g - Carbohydrates: 125.1 g - Fat: 74.7 g - Saturated Fat: 27.4 g - Trans Fat: 1.5 g - Fiber: 6.9 g - Sugar: 18.6 g - Added Sugars: 0 g - Cholesterol: 113 mg - Sodium: 1624 mg - Potassium: 1431 mg - Calcium: 920 mg - Iron: 2.8 mg - Vitamin D: 0 mcg ## Tips ### Two‑zone setup Create a clear hot side and a cool side so you can blister tomatoes and sear halloumi over flames, then finish or keep things warm on indirect heat without burning them. ### Pick ripe avocados Use avocados that yield slightly to gentle pressure so the interiors stay creamy after a brief char; underripe fruit will stay firm and overripe will turn mushy when handled. ### Control egg doneness Cook eggs in a small cast‑iron skillet over indirect heat with the lid closed and check at 3–4 minutes to ensure whites set while yolks remain runny. ### Don’t rush the jam After charring, simmer tomatoes slowly on the cool side to concentrate flavor; stirring every few minutes prevents sticking and lets you judge when it’s jammy. ### Keep textures separate For transport, pack the jam and mashed avocado in small containers and assemble just before eating to avoid soggy bread and lost contrast. ## Variations and Substitutions ### Vegan swap Replace halloumi with thick slices of firm tofu brushed in olive oil and a pinch of smoked paprika, and omit the egg or use a fried chickpea‑flour omelet for a runny center. ### Spicy kick Stir a teaspoon of harissa or a pinch of red‑pepper flakes into the tomato jam while it reduces for warm heat that plays nicely with the salty halloumi. ### Mediterranean twist Use grilled preserved lemon and a handful of fresh arugula or basil leaves in the sandwich, and swap balsamic for a little white wine vinegar in the jam for brightness. ### Cheese alternatives If you can’t find halloumi, use thick slices of paneer for a similar texture or high‑moisture halloumi‑style grilling cheese; avoid soft melting cheeses that will run. ## Notes This sandwich shines on slow, smoky weekend mornings or when you want an impressive outdoor breakfast without fuss. The charred tomato jam adds a jammy sweetness that balances the salty halloumi and creamy avocado. ### Storage and Make-Ahead Store leftover tomato jam in an airtight container in the refrigerator for up to 4 days; reheat gently on the grill’s cool side or in a small pan. Mashed charred avocado is best used the same day — press plastic wrap directly on the surface and refrigerate for up to 24 hours, though color and texture will degrade. Halloumi reheats well on a hot pan or grill for a minute per side; cooked eggs do not reheat gracefully, so cook them fresh when possible. ### Serving Suggestions Serve with a simple lemony arugula salad or grilled new potatoes tossed with olive oil and smoked paprika for a heartier meal. Bright, acidic pickles or quick‑pickled red onions cut through the richness, and a bold coffee or a citrusy sparkling water balances the savory-salty profile. For a picnic, include extra jam and a wedge of lemon so eaters can freshen sandwiches before tucking in. ## Frequently Asked Questions ### How do I know when the tomato jam is done? It should be noticeably reduced and glossy, clinging to the spoon rather than running off quickly; this usually takes 12–15 minutes after you move the charred tomatoes to the indirect side. ### Can I make the jam indoors instead of on a grill? Yes — blister the tomatoes under a broiler or in a hot skillet, then finish simmering in a saucepan with the brown sugar and balsamic until jammy, keeping the same 12–15 minute reduction. ### My avocados browned after mashing — how can I prevent that? Stir in a squeeze of lemon juice and press plastic wrap directly onto the surface to limit oxygen exposure; use within the day for best color and texture. ### What if I don’t have halloumi — what’s the best substitute? Paneer or thickly pressed extra‑firm tofu are the top substitutes because they hold their shape when seared; choose paneer for a closer texture and tofu for a milder, plant‑based option. ### How should I pack these for a hike or picnic? Keep jam and mashed avocado in separate small containers, stack halloumi and bread in a breathable sandwich bag or wrapped in parchment, and transport eggs separately or cook them just before eating to preserve the runny yolk and avoid sogginess. ## Related Recipes and Guides - [Tandoori Yogurt Marinated Grilled Chicken (Tandoori Style on the Grill)](https://www.topshelf.recipes/recipes/tandoori-yogurt-marinated-grilled-chicken) - [Labor Day Grilled Lobster Rolls with Charred Scallion Brown Butter & Lemon‑Herb Aioli](https://www.topshelf.recipes/recipes/labour-day-grilled-lobster-rolls-charred-scallion-brown-butter-lemon-herb-aioli) - [Bulgogi Smash Burger](https://www.topshelf.recipes/recipes/bulgogi-smash-burger) - [Campfire‑Smoked Potato Salad with Mustard‑Bacon Vinaigrette — A Labor Day Grilling Side for Steak](https://www.topshelf.recipes/recipes/campfire-smoked-potato-salad-mustard-bacon-vinaigrette) - [Hanger Steak with Shallot Sauce](https://www.topshelf.recipes/recipes/hanger-steak-with-shallot-sauce) - [Grilled Pineapple Upside-Down Cake](https://www.topshelf.recipes/recipes/grilled-pineapple-upside-down-cake) - [Trending Small‑Space Grilling for 2026: Balcony, Rooftop & Apartment‑Friendly Setups, Safety Tips, and 10 Compact Recipes](https://www.topshelf.recipes/articles/trending-small-space-grilling-2026-balcony-rooftop-apartment-setups-safety-tips-compact-recipes) - [Seasonal Labour Day Condiment Kit](https://www.topshelf.recipes/articles/labour-day-seasonal-condiments-12-make-ahead-relishes-mops-fruit-sauces) - [Trending Grilled Brunch 2026](https://www.topshelf.recipes/articles/trending-grilled-brunch-2026-10-fire-recipes-crowd-friendly-formats-beverage-pairings)