I have found a bar cookie recipe that seems to be popular with most and you can use any jams, jellies, or curds that you have. Plus, it works perfectly with an 8-ounce jar of spreads, and it's easy!
5-Ingredient Jam Bars
Ingredients:
1 cup unsalted butter
2 ¼ cup all-purpose flour
1 cup granulated sugar
1 egg, room temperature
1 cup jam or jelly, any flavor
Instructions:
Preheat oven to 350°F
Combine first four ingredients until crumbly using mixer or food processor. Reserving 1 ½ cups for topping.
Press evenly into a 9 x 9 baking pan.
Spread jam evenly over the crust.
Crumble topping over jam, press lightly into jam.
Bake for 40-50 minutes or until golden brown.
Cut after cooling.