Ingredients

1 1/2 cups (3 sticks) unsalted butter 

3 cups uncooked rolled oats (do not use instant) 

1 1/2 tablespoons all-purpose flour 

1 teaspoon salt 

1 3/4 cups sugar 

2 teaspoons vanilla extract 

2 large eggs, lightly beaten 

Preparation

Heat oven to 325 degrees. Cover a baking sheet with parchment paper.

In a large saucepan over low heat, melt the butter. Let cool a bit and add all remaining ingredients except the eggs. Stir well to combine, then add the eggs. Mix thoroughly.

Place 1 1/2 tablespoons of batter at a time on the parchment, leaving at least 3 inches between cookies. Flatten batter into a circle with the back of a spoon. Bake for 13 to 15 minutes, or until just golden brown. Cool on wire racks.