We made homemade ice cream with just a few simple ingredients, and it was really good! Making ice cream was one of the activities on our summer bucket list, and everyone was very excited about it. I loved how easy it was.
First, we put 2 TBSP sugar, 1/2 tsp vanilla extract, and 1 cup of half and half into a quart size plastic storage bag. Then, we put 1/2 cup Kosher salt into a gallon size plastic storage bag and filled the bag halfway with ice.
Next, we placed the sealed smaller bag with the ice cream ingredients inside the larger bag and sealed it.
Finally, C and R began to shake, shake, shake their bags. This lasted about 30 seconds until they said, "MOM, these bags are too heavy. Can you shake them for us?" So, I danced around the kitchen for five minutes shaking their bags until they each had a bag of ice cream to eat.
I put some toppings out and they each enjoyed an ice cream sundae! I had a few bites myself. It was good!
I don't know why, but C likes to wear winter pajamas in the summer. It was 100 degrees on this day!
On a science note, T asked me why salt is added to the ice to make ice cream. I had to look it up. 32 degrees is the melting point of ice, but the ice cream mixture will not freeze unless the temperature gets below 27 degrees. The salt changes the melting point of the ice. When you add salt to the ice, it lowers the freezing point of the ice, so even more energy has to be absorbed from the environment in order for the ice to melt. This makes the ice colder than it was before and the ice cream freezes.
Speaking of T, he made his own bag of ice cream, but I did not get any pictures. He thought it was a little watery, but it certainly did not stop him from eating all of it.
I am linking this to Science Sunday at
Adventures in Mommydom.