01 - Line an 8-inch square pan with parchment paper, allowing overhang for easy removal, and lightly grease the parchment.
02 - Toss rolled oats and chopped almonds together in a large mixing bowl until evenly distributed.
03 - In a small saucepan over medium heat, melt butter, honey, and brown sugar, stirring frequently until sugar dissolves and the mixture lightly bubbles, about 2 minutes.
04 - Remove syrup base from heat and stir in vanilla extract and sea salt until fully incorporated.
05 - Pour the warm syrup over oat nut mixture and use a spatula to blend until every ingredient is coated.
06 - Transfer mixture into prepared pan. Press firmly with the back of a flat spatula to create even density throughout.
07 - Bake in a preheated oven at 350°F for 18-20 minutes, or until golden around the edges. Remove from oven and cool completely in pan.
08 - Once fully cooled, lift bars out using parchment overhang and cut into 12 rectangles with a sharp knife.