01 -
Set your oven to 400°F. Cover a baking sheet with foil or parchment and coat with cooking spray.
02 -
Lay all the saltine crackers flat on the prepared baking tray in a single layer.
03 -
Melt butter and stir it together with brown sugar in a small saucepan on medium heat. After it starts bubbling, let it simmer for 3–4 minutes.
04 -
Spread the hot butter-sugar mix all over the crackers evenly.
05 -
Pop the tray in the oven for 5–6 minutes, just until the mixture bubbles up.
06 -
Take the crackers out of the oven and sprinkle chocolate chips on top. Let them sit for around 5 minutes so the chocolate melts.
07 -
Grab a spatula and evenly spread the melty chocolate over the crackers.
08 -
Scatter the chopped M&Ms across the melted chocolate, making sure they’re evenly spread.
09 -
Put the baking tray in the fridge for 3 hours, or into the freezer for 30 minutes, until firm.
10 -
Take the firmly set treat out of the fridge or freezer and break it into smaller chunks.