DIY microwave popcorn, and chocolate chunks (not together)

We've been doing some experiments with making different things at home.

I found a microwave popcorn recipe online that works well enough for a child of a certain age to prepare for themselves (although it doesn't scale up well for a family of our size; if it's all of us, we might as well make popcorn on the stove in the stockpot like we usually do).

Homemade microwave popcorn:

1/4 cup popcorn kernels
1/4 teaspoon vegetable oil
about 1/4 teaspoon or so of salt
a paper lunch bag

Mix the kernels, oil, and salt in a small bowl, and put in bag.  Fold the top of the bag over twice, firmly, and set the bag upright in the microwave.  Microwave for two minutes MAXIMUM, and stop sooner if fewer than two kernels per second are popping as the popping dies down.

We also experimented with making homemade chocolate chunks, as a substitute for chocolate chips. The two recipes I looked at used either coconut oil, or a mix of coconut oil and butter as a base. So I doubt these are cheaper than store-bought chocolate chips.

One of the recipes used a 1:1 ratio of oil to cocoa powder; the other a 2:1 ratio.  I tried 1:1, which seemed rather strong (bitter and possibly containing enough caffeine to interfere with sleep), and which needed a fair amount of additional sugar to make kid-palatable.

With the warm weather this week, the coconut oil is completely liquid, so I didn't bother heating it up before mixing. The chunks also tended to liquefy a few minutes after being removed from the freezer; the bar cookies that we used them in were somewhat marbled with melted chocolate.

I can't give an exact recipe for how we made the chunks, but I was aiming for a yield of about 1 cup, so it was something like:

Homemade chocolate chunks

3/4 cup coconut oil
3/4 cup cocoa powder
1/4 cup sugar
1/4 teaspoon vanilla

Heat coconut oil on low heat to melt, if solid. Mix in other ingredients. Add additional sugar to taste, if desired. Pour into a shallow pan and freeze. Cut into chunks before using; keep cool until baked or eaten.

I thought of adding in a little powdered milk to stabilize them a bit, but I thought it would be too grainy, unless I ground the powdered milk into a finer powder. I might try that next time.