Line a baking sheet with Silicone Baking Sheet with Rim and neatly arrange 25 crackers in rows in center of mat. Set aside.
In TupperWave® Stack Cooker 1¾-Qt./1.75 L Casserole, place butter and microwave on high power one minute, until melted. Add sugars, cream and whisk to combine. Microwave on high power 6 minutes, stopping to whisk every 2 minutes. Add extract and whisk to combine.
Pour, Set & Serve
Pour mixture evenly over crackers and sprinkle with salt. Allow to cool for approximately 15–20 minutes. Break into pieces and store in a sealed Tupperware container until ready to eat.