01 -
Warm your oven to 350°F (175°C). Grab a 9×9 pan, spray with cooking oil, and use parchment to make getting the bars out easy. Put it aside.
02 -
In a medium bowl, toss together the flour, baking soda, cinnamon, and salt with a whisk. Leave it for now.
03 -
In a big bowl, beat the butter with brown sugar for a couple of minutes till it turns airy and light. Scrape the edges of the bowl every now and then.
04 -
Mix in one egg at a time till it's all smooth, then stir in your vanilla extract.
05 -
Slowly mix the dry ingredients into the wet stuff until it just comes together. Fold in the oats and raisins. The dough will be thick and a bit tacky.
06 -
Press the dough into the lined pan. Sprinkle on some raisins if you're feeling fancy. Bake until the edges are golden, about 18–20 minutes.
07 -
Keep them in the baking pan for at least 5–10 minutes. Then lift them out with the parchment and place on a rack to cool fully before frosting.
08 -
Beat the butter in a bowl until soft, then slowly add powdered sugar. Pour in the syrup, cream, cinnamon, and, if you like, the maple flavoring. Blend until smooth and spreadable.
09 -
Spread the frosting on the fully cooled bars. Cut them up into squares, grab a piece, and dive in!