Oatmeal Squares Bar Cookie Recipe

Heat the oven to 350°F (180°C). Lightly grease a square pan or line it with parchment so the bars lift out easily.

In a bowl, stir the melted margarine, vanilla, and brown sugar until the sugar looks evenly moistened.

Add the rolled oats and mix until every oat is coated and the mixture holds together when pressed.

Spoon the mixture into the pan and press it down firmly with the back of a spoon; this helps the squares slice cleanly.

Bake for 15 minutes. Pull it when the edges turn lightly golden; don’t overbake or the bars can dry out.

Let it sit in the pan for 10 minutes, then cool completely. Slice into squares and serve.