1: Preheat the oven to 350°F.
2: Cream the butter and brown sugar together.
3: Add the strawberry jam and mix well.
4: Beat in the eggs one at a time, then add the vanilla.
5: Mix in the fruit puree and browning.
6: In a separate bowl, combine the flour, cake spice, and baking powder.
7: Gradually add the dry ingredients to the wet mixture and mix until combined.
8: Pour the batter into a prepared cake pan and smooth the top.
9: Bake for about 60 minutes or until a toothpick inserted comes out clean.
10: Let the cake cool before serving.
