To prepare a kobe avocado and sweetbreads recipe, you will first need to prepare the avocados. Peel and slice an avocado in half lengthwise. Cut each half into 1/4-inch slices. Place the slices in the bowl of ice water to stop the thawing process. Allow the mixture to sit for 10 minutes, then cut each slice into 12-inch thick slices and place on the baking sheet. Bake for 20 minutes at 375 degrees F. Remove from the oven and allow to cool for 5 minutes before serving.