Doctor homemade or store-bought marinara with smoky piquillo peppers and tangy feta cheese for an irresistible dip that comes together in a flash. Serve with plenty of crostini to sop up every last bit of sauce.
Preheat oven to 350 degrees.
In a blender, process marinara and piquillo peppers until smooth; transfer to a small (about 8-by-6-inch) heatproof dish. Top with feta.
Bake until bubbly around edges, about 20 minutes. Garnish with basil and red-pepper flakes, and serve with crostini.