Can I use regular milk instead of powdered milk?

No, you don't have to use powdered detergent. You can use liquid detergent too, but powered detergent will make the process more efficient.

I don't think you should use a cast iron pan but it could work if you are desperate. I would definitely use a gas stove.

No, powdered sugar has the correct consistency and using white sugar would just make sugary butter. White sugar is grainier than powdered sugar.

You can, but your sauce will be thinner and may require the addition of cornstarch or flour to thicken it up.

Start with one tablespoon and add a second if you want. Whipped cream just makes it thicker and creamier.

If you are using milk paint on drywall, you may want to add an acrylic binder to the first layer for a more opaque finish.

You could, but be extra careful when boiling it, or else it could sour. Fight milk is very feisty.

– ন্যায়পাল।

You could, but you would be disappointed in its flavor. It will not be a sweet as you are expecting.