Heat oven to 375° F.
In a medium saucepan, mix butter, sugars, corn syrup, and salt over medium-low heat, stirring occasionally until smooth. Remove from heat and mix in flour and almonds just until incorporated.
Drop level teaspoons of the batter onto parchment-lined baking sheets spacing them 4 inches apart. Bake until golden brown, 6 to 8 minutes.
Cool on the baking sheets until firm, 8 to 10 minutes, and then transfer to wire racks to cool completely.
