Place a cooling rack over top of a baking tray and set aside.
On a flat surface, lay out the biscuits. Cut out the center of each biscuit and then stretch each biscuit a bit wider (stretch by about ½").
Pour your frying oil into a large deep-sided pan and heat over medium-high heat. Use a candy thermometer to ensure you bring the oil to 350F, for best results. Once oil is hot, fry each donut individually for about 1 minute per side, until they are golden brown.
Set each fried donut on the cooling rack to allow excess oil to drip off.
Sift the powdered sugar into a large bowl.
Whisk in the lemon juice.
Then add in most of the lemon zest (reserve a little zest for garnishing).
Dip each donut into the lemon glaze.
Then place back on the cooling rack.
Garnish with additional lemon zest. Allow to sit until glaze is set, about 30 minutes.
Notes
You will need approximately 4 cups of oil to fry the donuts, but the amount will differ based on the size of your pan. You want at least 3–4" of depth. You can use canola or vegetable oil.
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