Ingredients

¾ cup butter, melted
¾ cup packed brown sugar
⅓ cup granulated sugar
1 egg
1 ½ teaspoons vanilla
1 ¾ cups all-purpose flour
½ teaspoon baking soda
½ teaspoon salt
1 cup semisweet chocolate or butterscotch-flavor pieces, white chocolate baking pieces, snipped dried fruit, almond toffee bits, candy-coated milk chocolate or peanut butter pieces, and/or chopped candy bars

Directions

Line a 6-qt. oval slow cooker with heavy foil. In a large bowl combine melted butter and both sugars. Stir in egg and vanilla. Stir in flour, baking soda, and salt. Stir in half of the chocolate pieces. Spread mixture in prepared cooker; top with remaining chocolate pieces.

Cover and cook on high 2 hours or until surface is evenly brown, giving crockery liner a half-turn once halfway through, if possible.

Turn off cooker. If possible, remove crockery liner from cooker. Cool, uncovered, at least 1 hour. Using foil, lift out cookies. Cut into bars.