Crispy Potato and Caramelized Onion Tart
A rustic tart with a flaky crust filled with golden potatoes and sweet onions, perfect for a light lunch or dinner side. This french-inspired vegetarian ready in about 75 minutes layers all-purpose flour, cubed cold butter, ice water into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 280 calories and feeds 6, so it slots into a weekend bake or a special-occasion dessert tray. 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.
Ingredients
- 1 1/2 cups all-purpose flour
- 1/2 cup, cubed cold butter
- 3 tbsp ice water
- 2 medium, peeled and thinly sliced potatoes
- 2 large, thinly sliced yellow onions
- 2 tbsp olive oil
- 1 tsp fresh, chopped thyme
- 1/2 tsp salt
Instructions
- Step 1: In a food processor, pulse flour and cold butter until mixture resembles coarse crumbs, then add ice water and pulse until dough just comes together; shape into a disc, wrap in plastic, and chill for 30 minutes.
- Step 2: Preheat oven to 400°F. Roll chilled dough into a 12-inch circle, transfer to a parchment-lined baking sheet, and prick all over with a fork.
- Step 3: Sauté potatoes and onions in olive oil over medium-low heat for 20 minutes until potatoes are tender and onions caramelized, stirring occasionally; season with thyme and salt.
- Step 4: Spread potato-onion mixture evenly over crust, fold edges inward, and bake for 25-30 minutes until crust is golden and potatoes are bubbling.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Crispy Potato and Caramelized Onion Tart take to make?
Total time is about 75 minutes (40 min prep + 35 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.
How do I store leftover Crispy Potato and Caramelized Onion Tart?
Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.
Can I substitute ingredients in Crispy Potato and Caramelized Onion Tart?
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 Crispy Potato and Caramelized Onion Tart for a different number of people?
The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). 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 Crispy Potato and Caramelized Onion Tart?
French vegetarian 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.
What others are saying
- ★★★★★
Best recipe I've made this month.
- ★★★★☆
Enjoyable meal. Instructions could be a touch more detailed on the timing.
- ★★★☆☆
Not bad. Would need significant modifications to make it a regular.
