How did bloody Mary kill protestants and why?

"Bloody Mary," or Mary I of England, executed Protestants primarily through burning at the stake, a method intended to punish heresy. Her reign from 1553 to 1558 aimed to restore Catholicism in England, leading to the persecution of Protestant reformers and dissenters. This campaign against Protestants was fueled by her belief in the necessity of religious conformity and the desire to reverse the Protestant Reformation initiated by her father, Henry VIII. The brutal actions during her rule earned her the infamous nickname, reflecting the violence of her policies.