I spend a lot of time gathering ideas for activities I can pack into my grandma bag and tote to the desert to entertain my grandsons. I have a Pinterest board filled with elaborate GRAND ideas, and I have a bookshelf packed with even more.

Sometimes, though, falling back on the tried and true is just as much fun. And just as much fun to photograph, too.

I'm speaking specifically about Rice Krispies Treats, which Bubby and I made together last time I got to be grandma-at-the-wheel at his place. It made for a surprisingly simple and sweet time, largely because I had the process down pat.

If it's been a while and you don't recall the recipe for the easy-peasy treats off the top of your head, the ingredients are:

• 3 tablespoons butter or margarine

• 10-ounce package regular marshmallows (or 4 cups miniature marshmallows)

• 6 cups Rice Krispies cereal

Because sprinkles—on cookies, ice cream, cakes, you name it—are a favorite of Bubby's, I jazzed up the process by including a shaker of various sprinkles for Bubby to shake on top of the treats.

Megan thought making the treats in mini-muffin cups would create perfectly portioned servings for Bubby. So we washed our hands, I sprayed the muffin pan plus a dish for the remaining (the recipe makes a lot), and we set to work.

First, Bubby dumped the marshmallows into the bowl.

I added the butter and set aside.

Bubby then dumped the Rice Krispies into another bowl.

Together we watched the marshmallows and butter melt in the microwave, stirring occasionally til smooth. Then I stirred together the fixings and quickly pressed it into the muffin molds and dish. Bubby immediately got to work at the shaking and sprinkling.

The final step was one that must never be forgotten when preparing food with a grandchild: licking the spoon...or the beaters...or the bowl. In this case, it was a spatula, and Bubby clearly mastered the step.