Garlic and Onion Confit Spread on Toasted Sourdough

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Slow-cooked garlic and onions create a mellow, sweet spread perfect for boosting flavor and comfort during cold season. This mediterranean-inspired snacks ready in about 100 minutes blends peeled garlic cloves, large, thinly sliced yellow onion, extra virgin olive oil into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 220 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 90 min Serves 4 Mediterranean cuisine 220 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 275°F (135°C). In an ovenproof dish, combine 12 peeled garlic cloves, 1 large thinly sliced yellow onion, 1/2 cup extra virgin olive oil, 1 tablespoon fresh thyme leaves, 1 teaspoon sea salt, and 1/2 teaspoon black pepper. Stir to coat evenly.
  2. Step 2: Cover tightly with foil and roast in the oven for 1.5 hours until garlic is soft and onions caramelized, stirring halfway through.
  3. Step 3: Toast 4 slices sourdough bread until golden brown. Spread generous amounts of the garlic and onion confit on each slice and serve warm as a comforting, flavorful snack.

Frequently asked questions

How long does Garlic and Onion Confit Spread on Toasted Sourdough take to make?

Total time is about 100 minutes (10 min prep + 90 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Garlic and Onion Confit Spread on Toasted Sourdough?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Garlic and Onion Confit Spread on Toasted Sourdough?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Garlic and Onion Confit Spread on Toasted Sourdough for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Garlic and Onion Confit Spread on Toasted Sourdough?

Mediterranean snacks like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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