"albeit grudgingly" is correct and can be used in written English.
It means despite some reluctance or hesitation. For example, "My parents reluctantly agreed to let me go to the concert, albeit grudgingly."
At another session, they learned how to hug, albeit grudgingly.
It seems that many consumers put up with the shortcomings of their IoT devices, albeit grudgingly.
The Trump administration has also said, albeit grudgingly, that Iran is complying.
Trump has already given his approval twice to preserve the agreement, albeit grudgingly.
On Tuesday, Mr. Bloomberg offered kind words for Mr. DeLay, albeit grudgingly.
These young offenders – albeit grudgingly – recognise the value of what they are doing.
Doctors now understand (albeit perhaps grudgingly) that their patients are eager to learn about their medical conditions and that this practice leads to better medicine.
Temperatures have dipped below freezing on only five mornings this February in the District, and nature is playing along — albeit, perhaps, grudgingly.
One policy he instituted was to ask general-interest publications not to disclose a forthcoming article in advance, a request almost always honored, albeit sometimes grudgingly.
While Bebchuk and Kastiel accept the notion that directors manage the corporation (albeit sometimes grudgingly), they believe that stockholders "own" the corporation and therefore any provision that limits the ability of public stockholders to control the board is bad governance.
But for those of us who entertain the obvious Beach Boys-fed yearnings but can barely swim the width of a pool, Finnegan occasionally comes up, albeit somewhat grudgingly, with an explanation.
