Julia Childs Berry Flan - butter

Method

• Heat oven to 350 degrees.
• Lightly butter a medium-size flameproof baking dish at least 1 1/2 inches deep.
• Place the milk, 1/3 cup granulated sugar, eggs, vanilla, salt and flour in a blender.
• Blend at top speed until smooth and frothy, about 1 minute.
• Pour a 1/4-inch layer of batter in the baking dish.
• Turn on a stove burner to low and set dish on top for a minute or two, until a film of batter has set in the bottom of the dish.
• Remove from heat.
• Spread berries over the batter and sprinkle on the remaining 1/3 cup granulated sugar.
• Pour on the rest of the batter and smooth with the back of a spoon.
• Place in the center of the oven and bake about 50 minutes, until top is puffed and browned and a tester plunged into its center comes out clean.
• Sprinkle with powdered sugar just before serving.
• (Clafoutis need not be served hot, but should still be warm.
• It will sink slightly as it cools.)