When sewing with minky in the past, I’ve used a walking foot but I found that I prefer just using a normal foot with about a million pins. In this picture below, I’ve placed a pin about every inch. With right sides together, I start off with a pin at each end and then place a pin in the middle. I keep adding pins in the middle of the already placed pins.
I set the needle all the way to the right so I could use the edge of the foot as a guide. I sew right over the needles even though I know it’s a bad idea. I rarely break a needle doing this and so I continue doing it. Make sure you leave an opening to turn the blanket right side out.
Then I turned the blanket right sides out and ironed the edges. Set the iron on low and iron on the cotton fabric side. Be very careful if you are using minky with the raised dots. An iron with ruin the dots!
Place pins on the edges.
Sew. I sewed with the minky up so it wouldn’t get caught in the feed dogs. I did have to pull on the minky with my right hand to keep it moving along.
Find the section that was used to turn the blanket right-side out.
And stitch closed by hand.