How do I grow larger potatoes in my container garden ?

My garden goal for 2025 is focusing on growing larger amounts potatoes from the store bought potatoes. I have grown some last year but they all came out pretty small in terms of size and the yield isn’t great either. My guess was the lack of fertilizing. Do you cut the sprouted potatoes or you plant a whole one ? What fertilizer should I use ? Could someone share some advice or experience ? Thank you! I got these last year from 3 sprouted potatoes that I bought from HEB.😂

My garden goal for 2025 is focusing on growing larger amounts potatoes from the store bought potatoes. I have grown some last year but they all came out pretty small in terms of size and the yield isn’t great either. My guess was the lack of fertilizing. Do you cut the sprouted potatoes or you plant a whole one ? What fertilizer should I use ? Could someone share some advice or experience ? Thank you! I got these last year from 3 sprouted potatoes that I bought from HEB.😂