01 - Preheat oven to 350°F. Line an 8-inch square baking pan with parchment paper, leaving overhang for easy removal.
02 - In a large mixing bowl, cream the unsalted butter and granulated sugar together with a hand or stand mixer until light and fluffy. Add salt, vanilla extract, and almond extract, mixing thoroughly.
03 - Gradually add all-purpose flour to the mixture, blending until a crumbly dough forms.
04 - Press two-thirds of the dough into the bottom of the prepared baking pan to create an even and firm base.
05 - Evenly distribute raspberry jam over the dough layer, leaving a narrow border along the edges.
06 - Crumble the remaining dough evenly atop the raspberry layer, then sprinkle sliced almonds over the surface.
07 - Bake for 28 to 32 minutes or until the crumble topping is golden and the almonds are lightly toasted.
08 - Allow bars to cool fully in the pan before lifting out using the parchment overhang. Cut into 16 even bars.