1 tablespoon unsalted butter 2 tablespoons
extra virgin olive oil 1 medium yellow onion, peeled and chopped 1 teaspoon whole cumin seeds 1 teaspoon curry powder 1/4 teaspoon turmeric scant 1/2 teaspoon cayenne pepper 1 cup canned diced tomatoes 3/4 cup water splash
of cream or a
dollop of creme fraiche