Line Baking Sheet with foil. Place saltine crackers completely across pan. May have to cut with knife to make fit exactly.
Melt 2 sticks of butter.
Add 1 cup sugar and stir. Cook over medium heat, boiling for three minutes. Pour mixture over crackers and smooth evenly with back of spoon. Be careful not to move crackers. Bake at 350 for 15 minutes.
Remove from oven and sprinkle with 12 oz. milk chocolate chips. Let stand for a couple minutes, then smooth over to spread like frosting. Sprinkle top with graham cracker crumbs while still wet. Let cool to room temperature, then refrigerate for 3-4 hours. Remove from pan and break into pieces. Store in air tight container. Keep in refrigerator.
Super easy - and tastes just like toffee! Next time I might try adding nuts!