(or 1/4 tsp/ 1/2 g crushed red pepper flakes for spicy sauce)
To serve
Cooked pasta or crusty bread
Parmesanoptional
Chopped basil or parsley
Instructions
Preheat oven to 375°F/190 C. Have a large baking dish ready.
Wash and dry the tomatoes. Scatter in the baking dish.
Thinly slice the onion lengthwise, parallel to the veins, into 1/4”/6mm ribbons. Peel the garlic cloves. Optional: lightly smash them with side of knife.
Wash and dry the basil leaves if using.
Scatter the onions, garlic, and basil around the tomatoes, tossing slightly to get everything mixed in.
Drizzle the olive oil over everything. Do not skimp on olive oil. Sprinkle on salt and pepper.
Roast for 40-50 minutes, until the tomatoes are burst, the onions are browned and disintegrating, and the garlic is golden and fragrant.
Remove from oven. Smash with the back of a fork or blend with an immersion blender.
Serve over pasta, polenta, or scoop out of the pan with crusty bread.
Storage and Leftovers
Sauce stores in the fridge for 3 days. Heat before serving. Store separately from pasta. If blended, sauce can be frozen in individual portions of about 1/2 cup/115g for 1-2 months.
Notes
Add some protein: Add 1 can/1 2/3 cups/290g cooked and drained white beans (navy, cannellini, butter beans, etc.) and an additional 2 tbsp/30ml olive oil. Increase salt to 1 tsp/6g.