Half candy, half cookie. Betcha you can't eat just one.
40 saltines
1 cup (2 sticks) butter
1/2 cup packed brown sugar
1/4 teaspoon baking soda
12 ounces semi-sweet chocolate chips
Preheat oven to 375 degrees F. Line a baking sheet (with sides) with heavy foil. Arrange saltines in a single layer, touching.
In a small saucepan, bring butter and brown sugar to a boil, stirring occasionally. Remove from heat and stir in baking soda. Pour over crackers and spread with coat evenly. Bake 6 - 7 minutes.
Immediately spread chocolate chips over, and as they start to melt, spread with a rubber spatula to cover. Allow to cool (refrigerate to speed up process). Break into pieces. Store, covered at room temperature for up to a week (although that's never happened in my lifetime).