Peanut Butter and Jam Bars

Ingredients:
113g butter, at room temperature
3/4 cup sugar
1/2 tsp. pure vanilla extract
1 egg
320g creamy peanut butter
1.5cup all-purpose flour
1/2 tsp baking powder
3/4 tsp. kosher salt
250g jam
1/4cup salted peanuts, coarsely chopped (optional)

Method:
1. Preheat the oven to 180C. Grease and flour/line with baking paper an 8" square pan.
2. In a large bowl, cream the butter and sugar on medium speed about 2 minutes.
3. Switch to low speed, add vanilla, egg, and peanut butter, and mix until all ingredients are combined.
4. Add in sifted flour+baking powder+salt. Mix just until combined.
5. Spread 2/3 of the dough into the prepared pan
6. Spread the jam evenly over the dough.
7. Drop small globs of the remaining dough evenly over the jam.
8. Sprinkle with chopped peanuts and bake for 50 minutes, until golden brown.
9. Cool and cut into bars.