Does anyone has Mrs.Beasley poppy seed muffin recipe? There is walnut in this muffin.
Nope, never heard about it, sorry
Nope, but I have two good recipes for lemon and poppy seed cakes, you could add walnut at your discretion and use a general baking time of 18-20 minutes
Also increasing the temp to ~400F as that's a more normal temp for this sort of thing in muffin form.