Soft, tender sugar cookie bars with a buttery crumb and smooth, creamy vanilla frosting, perfect for back-to-school treats or cozy snacks.
Do not overbake to keep bars soft. Let bars cool completely before frosting to avoid melting. Use a warm knife to slice bars cleanly. For gluten-free, substitute all-purpose flour with a 1:1 gluten-free baking blend and ensure baking powder is gluten-free. For dairy-free frosting, use vegan butter and dairy-free milk like coconut or almond milk.
Keywords: sugar cookie bars, soft cookie bars, frosted sugar bars, back-to-school treats, easy cookie bars, vanilla frosting, soft cookies