01 - Preheat oven to 350°F. Line an 8-inch square baking pan with parchment paper, allowing excess to hang over sides for easy removal.
02 - In a large bowl, cream together softened butter and granulated sugar until pale and fluffy. Incorporate salt, vanilla extract, and almond extract thoroughly.
03 - Gradually add all-purpose flour to the creamed mixture, mixing until a crumbly dough forms.
04 - Press two-thirds of the dough evenly into the prepared pan to create a firm base.
05 - Spread raspberry jam evenly over the dough base, leaving a narrow border along the edges.
06 - Crumble the remaining dough evenly over the jam layer and top with the sliced almonds.
07 - Bake for 28 to 32 minutes, or until the surface is golden and the almonds are lightly toasted.
08 - Allow bars to cool completely in the pan. Lift out using parchment overhang and slice into individual portions.