In a small bowl, mix together the flour and baking powder. This is the dry mixture.
In a stand mixer bowl, cream the butter and sugar until it’s light and fluffy.
Add the egg and vanilla extract and mix again. Add the dry mixture and mix again until the dough comes together.
Put the dough in between 2 parchment paper. Roll it out into a 12 inch square.
Remove the top parchment paper. Spread the jam and sprinkle the pecan evenly. Roll it up tightly into a log. Wrap it with plastic wrap and chill for 2 hours.
Preheat oven to 375 degrees F. Line 2 baking sheets with parchment paper.
Unwrap the dough and slice it into 1/4 inch thickness. Bake for 9-12 minutes until the edges are light brown. Cool on wire racks before storing it in an airtight container.