Melt the butter in a small saucepan on the stove top, add the brown sugar, cayenne and rosemary. Stir. No salt is nessesarry unless you have unsalted nuts.
Add the mixed nuts to the slow cooker. Pour over the butter mixture. Stir.
Cover and cook on HIGH for 1 hour 20 minutes. Stirring every 20 minutes to prevent burning.
Serve warm or at room temperature. Enjoy! I found it's better to turn the slow cooker to off while serving these, even the warm function will over cook these and may cause burning.
Slow Cooker Size: 4 quart or larger.The nut mixture I use has brazil nuts, cashews, pecans, macadamia and almonds. Use your favorite mix or single nut. Sesame seeds are a great addition to this recipe and make it different than most bar nuts.Nutritional values are approximate. Please use your own calculations if you require a special diet.