Well-regarded recipes for oatmeal lace cookies from Martha Stewart and Food Network involve combining melted unsalted butter with sugar, rolled oats, flour, vanilla extract and salt. When the mixture cools slightly, incorporate beaten eggs. Place heaped tablespoonfuls of batter on parchment-paper-lined baking sheets, and flatten them into circles.
The Martha Stewart recipe calls for 3 sticks butter, 1 3/4 cups sugar, 3 cups rolled oats and 1 1/2 tablespoons flour. It includes 2 teaspoons vanilla extract, 1 teaspoon salt and 2 eggs. Bake the cookies at 325 F for 13 minutes or until they turn golden brown.
The Food Network recipe uses 1 stick butter, 2/3 cup sugar and 1 cup rolled oats. It contains 1 teaspoon vanilla extract, 1/2 teaspoon salt and 1 tablespoon egg white. Bake the cookies at 350 F for 12 minutes or until they develop a deep golden color. Decorate them with melted semisweet chocolate.