¹⁄₂ can tomatoes, or
2 cups raw tomatoes
1 slice onion
¹⁄₂ bay leaf
1 teaspoon salt
¹⁄₈ teaspoon pepper
3 tablespoons butter
3 tablespoons flour
¹⁄₂ cup water or stock
Cook all the ingredients but the butter and flour in a cooker for one
hour or more. Rub them through a strainer and add this, gradually, to
the blended butter and flour.