If you have an Instant Pot with a Yogurt function, this is going to be quick and easy.
Pour all ingredients into the instant pot. Give it a quick whisk to distribute everything evenly. Place the lid on, click yogurt, set it to the desired time and let it do it's thing. The longer you let it go, the more tart it gets. My sweet spot is at around 10-10 1/2 hrs.
I tend you pour all the ingredients straight into the instant pot stainless steel and transfer to a large container after it has set. You can however culture your yogurt in jars and stack those into the instant pot to set.
In that case, whisk all your ingredients together in a large container with a pouring spout. The pour the mixture into your yogurt glasses, close with the lid and stack them into the instant pot. Set to yogurt, enter your desired time and let it do it's thing.
2. Don't have an instant pot?
Not a problem. There are many ways to make yogurt without one.
If you have a food dehydrator, you can use that. Just make sure that the temperature never exceeds 110 F.
You can also use a proofing box, if it has a temperature setting.
Basically, you can use any method that provides a steady temperature and adjust as the yogurt mixture warms up.
Alternatively, you can warm the Ripple, maple syrup and cream mix to 110 F, then whisk in the yogurt and proceed with your usual method.