Italian almond tart

Name: Italian almond tart
Cuisine: European, Italian, Mediterranean
Ingredients: 1 recipe of your favorite pie crust or one already prepared store-bought crust; 1 stick of unsalted butter (room temp (if using salted butter, eliminate the pinch of salt)); 1/2 pound almond paste (see notes above in filling ingredients, cut into chunks); 1/4 cup sugar; 2 eggs (at room temp); 1/3 cup flour; pinch of salt; 3/4 cup of your favorite jam or preserves (traditional and my personal fave is sour cherry); 1/4 cup sliced almonds