4 c. pitted, halved, fresh purple plums
4 tbsp. brown sugar
3 tbsp. flour
1/2 tsp. cinnamon
1 egg, well beaten
1 tsp. vanilla
1 c. flour
1 c. granulated sugar
1 tsp. baking powder
1/4 tsp. salt
1/4 tsp. mace
1/2 c. melted butter

Put plums in a baking dish (8 x 8 x 2 inches or 7 x 10 x 2 inches) to within 1/2 inch of top. Mix together brown sugar, flour and cinnamon. Sprinkle over plums and mix lightly with a fork.

TOPPING:

Beat egg until thick and lemon colored. Add vanilla. Combine the 1 cup flour, 1 cup sugar, baking powder, salt and mace in a bowl. Add beaten egg and mix together with a fork until crumbly. Sprinkle on top of plums. Drizzle on melted butter. Bake at 375 degrees for about 45 minutes, or until topping is golden brown and plum mixture is bubbly. Serve warm or at room temperature.