In a large bowl mix oats, brown sugar, pecans, and salt.

In a microwave safe bowl heat butter and corn syrup until warm, about 30 seconds. Whisk in vanilla. Pour over the oat mixture and mix thoroughly until everything is completely coated.

Spread evenly on a parchment or silpat covered cookie sheet. Bake at 300º for about 20 minutes until slightly golden brown. Don’t stir during baking. Cool completely and break into pieces. Store in an air tight container.