First of all it is necessary to buy candy-butterscotch. I recently take here such - they are not too soft, but not as hard as our Soviet iris "KIS-KIS". Just say that hard toffee that stick to the teeth)), cook did not try, but with too soft that easily crushed with your finger, not like - they are almost all absorbed into the dough during baking. One more thing - try to buy the best ingredients of the toffee, because the taste of cookies depends on them. And, of course, pay attention to composition. Sometimes in these chocolates with natural ingredients less than all substitutes and emulsifiers.

I apologize for all the photos, they are made hastily. So, first mix all the dry ingredients. Sift flour in bowl, unsweetened cocoa, add sugar, salt and vanilla. I instead added the orange flower extract - Fleur d\'orange

Mix thoroughly to a uniform color. Add softened butter and egg

Knead the dough. Actually, in the good, it would be necessary to put the dough in the cold for an hour. Never did. If you have time, try it. Don't know whether to change something...

Divide the dough into pieces. I got 21 pieces. Roll balls. As the balls was not very large, I cut each candy in half. Mash each ball with your finger and put it inside of candy. Roll into cookies, dip in powdered sugar. You can in sugar, but I don't really like crunches on the teeth sugar after baking. A few cookies rolled in cocoa for a change. But you can not roll in anything, a matter of taste.

Bake at 180 degrees for 12 minutes. Do not eat until the cookies slightly cool inside hot liquid caramel. When the cookie cools, it solidifies and caramel, but it becomes a little softer than before baking. Sometimes, if the cookies remain, I put it in the micro for 30 seconds. Itself becomes warm biscuits and toffee inside it turns into toffee. In this way, you can not be afraid that the hot filling will burn baby tongue.