Butter Tart Squares Dessert (Print Version)

# Ingredients:

→ Crust

01 - 2 cups all-purpose flour
02 - 4 tablespoons icing sugar
03 - 1 cup unsalted butter, cold and cut into small cubes
04 - 1 to 2 tablespoons cold water (if needed)

→ Filling

05 - 1/2 cup unsalted butter, melted
06 - 3 cups brown sugar, lightly packed
07 - 4 large eggs
08 - 1 to 2 tablespoons white vinegar
09 - 1 tablespoon vanilla extract
10 - 3/4 cup raisins (optional)

# Instructions:

01 - Line a 9x13 inch baking pan with parchment paper and coat with nonstick cooking spray.
02 - Set oven temperature to 350°F (175°C) and allow to preheat.
03 - In a large bowl, whisk together all-purpose flour and icing sugar.
04 - Add cold butter cubes and cut into flour mixture with a pastry cutter or fingertips until pea-sized crumbs form. If mixture is too dry, blend in cold water 1 tablespoon at a time.
05 - Press crust mixture evenly into the prepared pan. Bake in preheated oven for 10 minutes. Remove from oven and set aside.
06 - Melt unsalted butter in a medium bowl. Whisk in brown sugar until smooth, then incorporate eggs one at a time, whisking well after each addition. Blend in white vinegar and vanilla extract. Stir in raisins if desired.
07 - Pour the filling evenly over the baked crust. Return pan to oven and bake for 25 to 30 minutes, until filling is mostly set with a slight jiggle at the center.
08 - Allow pan to cool to room temperature. Refrigerate for several hours until fully set.
09 - Cut into squares and serve chilled or at room temperature.

# Notes:

01 - Use melted and slightly cooled butter for the filling to prevent curdling the eggs.
02 - For added texture and flavor, consider adding chopped nuts or substituting or including raisins.
03 - Store squares in an airtight container at room temperature for up to 3 days or refrigerate for extended freshness.