GUAVA CAKE

12 tablespoons (3/4 cup) butter
1 cup sugar
2 cups flour
2 eggs
1 teaspoon baking powder
1/4 teaspoon salt
1 teaspoon vanilla extract
8-10 oz guava paste

Preheat oven to 350°F Cream butter. Add sugar little by little. Add eggs one by one, followed by vanilla. Sift flour together with baking soda and salt. Mix with the sugar/egg mixture. Pour half the batter in a greased square (8x8) cake pan. Cut the guava paste in slices and use the slices to cover all the batter. Pour the rest of the batter on top of the guava slices. Place in oven and bake for 45-60 minutes. Check cake for doneness (an inserted toothpick comes out clean) as oven temperatures varies.