You are going to need your slush cup and the ingredients for your drink for this project. One option is to go with this Vanilla Frappuccino recipe.Below I'm going to give the basics of making up your own Frappuccino with whatever syrup flavors you want. All you really need is the proportions then you can try out different syrup combinations. Also, the slushie cup is only going to hold about a cup or so of liquid. So you can scale down for one serving, or make multiple servings ahead of time and use it as you need it (this is a good method as the mix will always be nice and cold and ready to go in the slush mug).Drink Ingredients:6c Milk - My slush mug suggests you use Skim Milk, but I've had success with 2%. I would stay away from whole or anything thicker.1/2c - 1c Strong Coffee (I only used 1 cup because I'm not a huge fan of coffee flavor, but if you like it, go ahead and add more in)24 tbsp of Syrups + Simple Syrup (I'm going to keep this in tablespoons so that you can easily do different combinations) | I did 12tbsp Caramel Syrup and 12tbsp simple syrup - use less or more if you prefer, I like things sweeter.Rough Estimate of Single Serving:3/4c of Milk + Strong coffee (I would say to just put them together in a measuring cup to get an idea of how much of each)2tbsp Caramel Syrup (or syrup of choice)1-2tbsp Simple SyrupSupplies:Freezer (duh) Slush Mug* Reusable StrawsSpoon for stirring* This is what I used, but there are other products you can consider. I looked around before I decided what product to buy.

To get started, you need to freeze your slush mug core. The product directions suggest you let it freeze for 6-12 hours in the coldest part of the freezer. I don't know what part is technically the coldest, but it would be best to keep it as far from the door as you can.Mix up your drink. It is good to do this ahead of time as you can then have enough for multiple drinks and they suggest you have the drink cold when you put it in the mug. By having it premixed there is no delay with mixing; you just take it out of the fridge and pour it in the mug.Drink Ingredients:6c Milk - My slush mug suggests you use Skim Milk, but I've had success with 2%. I would stay away from whole or anything thicker.1/2c - 1c Strong Coffee (I only used 1 cup because I'm not a huge fan of coffee flavor, but if you like it, go ahead and add more in)24 tbsp of Syrups + Simple Syrups (I'm going to keep this in tablespoons so that you can easily do different combinations) | I did 12tbsp (3/4c) Caramel Syrup and 12tbsp (3/4c) simple syrup - use less or more if you prefer, I like things sweeter.

You should stir the drink every few minutes or so. I think it's mostly important that you scrape down any frozen drink that is sticking to the inside of the cup. You want to make sure it is all staying mixed and slushie.Keep bringing the frozen mixture from the bottom of the glass to the top and let the liquid go down to the bottom as much as you can as it appears to freeze more from the bottom up.2:00 - Still all liquid5:30 - Some frozen to scrape from the side of the cup8:00 - Same13-14:00 - Started to be more slushie18:00 - Little more slushie23:00 - More slush27:00 - More slush30:00 - About as slushie as it is going to get. Pretty much all slush at this point.

You can choose to drink it out of the Slush Mug or in another cup. The product suggests you take it out so you can refreeze the core right away so it will be ready for next time. I noticed that when I drank it right from the mug, it continued to keep refreezing it, so it actually never melted (or at least never melted by the time I finished it). So to play it safe, just leave it right in the mug. If you wanna be fancy, put it in another cup. Also, if you leave it in the slush mug, you'll probably have to scrap the sides from time to time since it will keep freezing. I just used my straw.