01 - Preheat oven to 350°F (175°C). Line an 8-inch square baking pan with parchment paper, leaving an overhang for easy lifting.
02 - In a large mixing bowl, cream unsalted butter and granulated sugar with a hand mixer until light and fluffy. Mix in salt, vanilla extract, and almond extract until thoroughly combined.
03 - Gradually add all-purpose flour to the mixture, blending until the dough becomes crumbly.
04 - Press two-thirds of the dough evenly into the bottom of the lined pan to form a uniform base.
05 - Spread raspberry jam evenly over the dough layer, leaving a narrow border at the edges.
06 - Crumble remaining dough over the jam layer and distribute sliced almonds evenly on top.
07 - Place pan in the preheated oven and bake for 28 to 32 minutes until the surface is golden and almonds are lightly toasted.
08 - Allow to cool completely in the pan before lifting out and slicing into bars.